PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/30-22:28:00
G10     310.3          56.1                8.5 +/-    1.47      10.1 +/-    1.47  0.030 / 0.040
G14     212.1          16.3               16.2 +/-    1.53      39.2 +/-    1.53  0.030 / 0.040
G15     45.6           22.5                7.2 +/-    2.68      14.8 +/-    2.68  0.200 / 0.260
G20     10.5           64.2                9.9 +/-    0.65      10.8 +/-    0.65  0.160 / 0.340
G21     113.6          70.1               11.2 +/-    1.00      11.9 +/-    1.00  0.070 / 0.260
G24     91.2           29.0                9.9 +/-    1.45      17.8 +/-    1.45  0.120 / 0.300
G27     293.0          36.7               11.7 +/-    2.25      18.0 +/-    2.25  0.100 / 0.100
G32     213.3          38.8               13.1 +/-    1.17      19.4 +/-    1.17  0.100 / 0.090